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Finding the Fourth Proportional to 70,340.85, 97,070.94 and 38,510.01

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Solution

The fourth proportional to 70,340.85, 97,070.94 and 38,510.01 is: 53,144.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,340.85 : 97,070.94 = 38,510.01 : x
  2. Step 2: Convert to fraction form
    70,340.85/97,070.94 = 38,510.01/x
  3. Step 3: Cross multiply
    70,340.85x = 97,070.94 × 38,510.01
  4. Step 4: Simplify right side
    70,340.85x = 3,738,202,870.11
  5. Step 5: Solve for x
    x = 3,738,202,870.11/70,340.85
  6. Step 6: Final answer
    x = 53,144.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.