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Finding the Fourth Proportional to 70,737.84, 97,585.40 and 42,394.32

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Solution

The fourth proportional to 70,737.84, 97,585.40 and 42,394.32 is: 58,484.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,737.84 : 97,585.40 = 42,394.32 : x
  2. Step 2: Convert to fraction form
    70,737.84/97,585.40 = 42,394.32/x
  3. Step 3: Cross multiply
    70,737.84x = 97,585.40 × 42,394.32
  4. Step 4: Simplify right side
    70,737.84x = 4,137,066,674.93
  5. Step 5: Solve for x
    x = 4,137,066,674.93/70,737.84
  6. Step 6: Final answer
    x = 58,484.49

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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.