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Finding the Fourth Proportional to 70,937.40, 97,898.02 and 39,106.24

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Solution

The fourth proportional to 70,937.40, 97,898.02 and 39,106.24 is: 53,969.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,937.40 : 97,898.02 = 39,106.24 : x
  2. Step 2: Convert to fraction form
    70,937.40/97,898.02 = 39,106.24/x
  3. Step 3: Cross multiply
    70,937.40x = 97,898.02 × 39,106.24
  4. Step 4: Simplify right side
    70,937.40x = 3,828,423,465.64
  5. Step 5: Solve for x
    x = 3,828,423,465.64/70,937.40
  6. Step 6: Final answer
    x = 53,969.04

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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.