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Finding the Fourth Proportional to 70,574.88, 97,395.84 and 38,746.20

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Solution

The fourth proportional to 70,574.88, 97,395.84 and 38,746.20 is: 53,471.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,574.88 : 97,395.84 = 38,746.20 : x
  2. Step 2: Convert to fraction form
    70,574.88/97,395.84 = 38,746.20/x
  3. Step 3: Cross multiply
    70,574.88x = 97,395.84 × 38,746.20
  4. Step 4: Simplify right side
    70,574.88x = 3,773,718,695.81
  5. Step 5: Solve for x
    x = 3,773,718,695.81/70,574.88
  6. Step 6: Final answer
    x = 53,471.13

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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.