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Finding the Fourth Proportional to 70,313.16, 97,032.05 and 38,482.05

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Solution

The fourth proportional to 70,313.16, 97,032.05 and 38,482.05 is: 53,105.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,313.16 : 97,032.05 = 38,482.05 : x
  2. Step 2: Convert to fraction form
    70,313.16/97,032.05 = 38,482.05/x
  3. Step 3: Cross multiply
    70,313.16x = 97,032.05 × 38,482.05
  4. Step 4: Simplify right side
    70,313.16x = 3,733,992,007.29
  5. Step 5: Solve for x
    x = 3,733,992,007.29/70,313.16
  6. Step 6: Final answer
    x = 53,105.17

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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.