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Finding the Fourth Proportional to 9,075,706.40, 12,715,436.80 and 9,075,706.40

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Solution

The fourth proportional to 9,075,706.40, 12,715,436.80 and 9,075,706.40 is: 12,715,436.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,075,706.40 : 12,715,436.80 = 9,075,706.40 : x
  2. Step 2: Convert to fraction form
    9,075,706.40/12,715,436.80 = 9,075,706.40/x
  3. Step 3: Cross multiply
    9,075,706.40x = 12,715,436.80 × 9,075,706.40
  4. Step 4: Simplify right side
    9,075,706.40x = 115,401,571,144,555.53
  5. Step 5: Solve for x
    x = 115,401,571,144,555.53/9,075,706.40
  6. Step 6: Final answer
    x = 12,715,436.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.