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Finding the Fourth Proportional to 58,038.45, 86,941.03 and 30,278.13

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Solution

The fourth proportional to 58,038.45, 86,941.03 and 30,278.13 is: 45,356.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,038.45 : 86,941.03 = 30,278.13 : x
  2. Step 2: Convert to fraction form
    58,038.45/86,941.03 = 30,278.13/x
  3. Step 3: Cross multiply
    58,038.45x = 86,941.03 × 30,278.13
  4. Step 4: Simplify right side
    58,038.45x = 2,632,411,808.67
  5. Step 5: Solve for x
    x = 2,632,411,808.67/58,038.45
  6. Step 6: Final answer
    x = 45,356.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.