Finding the Fourth Proportional to 34,542,283.78, 47,648,368.59 and 22,319,140.78
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Solution
The fourth proportional to 34,542,283.78, 47,648,368.59 and 22,319,140.78 is: 30,787,502.45
Step by Step Solution
- Step 1: Write the proportion equation
34,542,283.78 : 47,648,368.59 = 22,319,140.78 : x - Step 2: Convert to fraction form
34,542,283.78/47,648,368.59 = 22,319,140.78/x - Step 3: Cross multiply
34,542,283.78x = 47,648,368.59 × 22,319,140.78 - Step 4: Simplify right side
34,542,283.78x = 1,063,470,646,497,540.25 - Step 5: Solve for x
x = 1,063,470,646,497,540.25/34,542,283.78 - Step 6: Final answer
x = 30,787,502.45
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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.