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Finding the Fourth Proportional to 13,312.17, 19,951.29 and 7,075.17

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Solution

The fourth proportional to 13,312.17, 19,951.29 and 7,075.17 is: 10,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.17 : 19,951.29 = 7,075.17 : x
  2. Step 2: Convert to fraction form
    13,312.17/19,951.29 = 7,075.17/x
  3. Step 3: Cross multiply
    13,312.17x = 19,951.29 × 7,075.17
  4. Step 4: Simplify right side
    13,312.17x = 141,158,768.47
  5. Step 5: Solve for x
    x = 141,158,768.47/13,312.17
  6. Step 6: Final answer
    x = 10,603.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.