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Finding the Fourth Proportional to 84,038.50, 115,980.42 and 46,320.04

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Solution

The fourth proportional to 84,038.50, 115,980.42 and 46,320.04 is: 63,925.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,038.50 : 115,980.42 = 46,320.04 : x
  2. Step 2: Convert to fraction form
    84,038.50/115,980.42 = 46,320.04/x
  3. Step 3: Cross multiply
    84,038.50x = 115,980.42 × 46,320.04
  4. Step 4: Simplify right side
    84,038.50x = 5,372,217,693.62
  5. Step 5: Solve for x
    x = 5,372,217,693.62/84,038.50
  6. Step 6: Final answer
    x = 63,925.67

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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.